In the case of the Metro tunnel beneath the Hooghly River, which technique was used to avoid water ingress?
A. Pre-grouting
B. Compressed air tunneling
C. Slurry shield TBM
D. Jet grouting
Answer: Option C
Solution (By Examveda Team)
A slurry shield Tunnel Boring Machine was used under the Hooghly River to balance water pressure and prevent ingress.This Question Belongs to Geological Engineering >> Case Studies And Applied Geological Engineering Projects
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